authorities vs executive

authorities and executive both are nouns.

Word	Noun	Adjective	Verb	Adverb
authorities	Yes	No	No	No
executive	Yes	Yes	No	No

authorities (noun)	executive (noun)
the organization that is the governing authority of a political unit	persons who administer the law
	a person responsible for the administration of a business
	someone who manages a government agency or department

authorities (adjective)	executive (adjective)
	having the function of carrying out plans or orders etc.